Nashville, IL Radon Levels

Q: What EPA Radon Zone is Nashville in?

Nashville is in Washington County, EPA Zone 2.

Q: How much does radon mitigation cost in Nashville?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Nashville radon levels and find certified testing and mitigation professionals to keep your home safe

Nashville, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Washington County, IL

Zip Code 62263

Small Washington County community Nashville sits within southern Illinois's coal-bearing region, where Pennsylvanian shale and sandstone formations create moderate radon potential. Testing data for this rural area in zip code 62263 remains limited, making individual home assessment particularly valuable for residents. Homeowners should prioritize testing, especially in older farmhouses and homes with traditional basement construction common throughout central Illinois.

6.79

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.79 pCi/L, based on 14 tests from 10 nearby cities. No readings have been submitted for Nashville yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Nashville, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Nashville, IL

No homeowner tests have been submitted for Nashville yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Carlyle	18.8 mi	13.00 pCi/L	1
Marissa	20.8 mi	4.00 pCi/L	1
Mascoutah	23.9 mi	6.50 pCi/L	2
Mount Vernon	25.7 mi	4.00 pCi/L	1
Kell	28.4 mi	5.00 pCi/L	1
Lebanon	29.2 mi	10.50 pCi/L	2
Campbell Hill	30.4 mi	1.00 pCi/L	1
O Fallon	32.1 mi	6.00 pCi/L	1

Washington County Radon Profile

The soils and bedrock of Washington County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Few homeowner tests have been logged inside Washington County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Washington County to test, as levels can differ between neighboring homes.

Radon FAQ for Nashville, IL

What EPA Radon Zone is Nashville in?

Nashville and the 62263 zip code are in Washington County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Nashville?

No homeowner radon tests have been submitted for Nashville yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Washington County average—are the best available indicator of local conditions until Nashville homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Nashville?

Radon mitigation in Nashville typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Nashville?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.